Sanyo PLC-XU4000 Owner's Manual - Page 61

Maintenance and Cleaning Replacing the Filters Filter prevents dust from accumulating on the optical elements inside the projector. Should the filter become clogged with dust particles, it will reduce cooling fans' effectiveness and may result in internal heat buildup and adversely affect the life of the projector. If a "Filter warning" icon appears on the screen, replace the filters immediately. Replace the filters by following the steps below. 1 Turn off the projector and unplug the AC power cord from the AC outlet. 2 Turn over the projector and pull out the filter cover (bottom); pull up the handle and take out the whole filter (bottom.) Press up the latches and pull out the filter cover (side); pull out the handle and take out the side filter. 3 Put new filters back into the position. Make sure that the filters are fully inserted to the projector. 4 Connect the AC power cord to the projector and turn on the projector. CAUTION -Do not operate the projector with the filters removed. Dust may accumulate on the optical elements degrading picture quality. -Do not put anything into the air vents. Doing so may result in malfunction of the projector. -Do not wash the filters with water or any other liquid matter. Otherwise the filters may be damaged.  Filter cover (bottom) Handle (pull up) Filter cover (side)  Latches (press up) Filter counter Handle (pull out) RECOMMENDATION We recommend avoiding dusty/smoky environments when you operate the projector. Usage in these environments may cause poor image quality. When using the projector under dusty or smoky conditions, dust may accumulate on a lens, LCD panels, or optical elements inside the projector degrading the quality of a projected image. When the symptoms above are noticed, contact your authorized dealer or service center for proper cleaning. Resetting the Filter Counter Be sure to reset the Filter counter after replacing the filters. 1 Press the MENU button to display the On-Screen Menu. Use the Point▲▼ buttons to select the Setting Menu and then press the Point ► or the SELECT button. 2 Use the Point ▲▼ buttons select Filter counter and then press the Point ► or the SELECT button. Use the Point ▲▼ buttons to select Filter counter reset and then press the SELECT button. The Filter counter Reset? appears. Select Yes to continue. 3 Another confirmation dialog box appears, select Yes to reset the Filter counter. The Filter counter Reset? appears. Select Yes, then another confirmation box appears. Select Yes again to reset the Filter counter. 61